1. Киришүү
This manual provides detailed instructions for the setup, operation, maintenance, and troubleshooting of your Gustard X26III DAC Network Bridge and Streaming device. Please read this manual thoroughly before using the product to ensure optimal performance and longevity.

Сүрөт 1.1: Алдыңкы view of the Gustard X26III DAC Network Bridge and Streaming device, showcasing its sleek silver design and front panel display.
2. Негизги өзгөчөлүктөрү
- Dual ES9039SPRO DAC Chips: Utilizes two ESS flagship ES9039SPRO chips for Digital-to-Analog Conversion, with one chip dedicated to each left and right channel. Features independent power supply and grounding for enhanced sound performance.
- DSP Digital Filter: Incorporates a high-performance digital filter solution based on the Analog Device SHARC digital audio-specific DSP platform. This filter reduces audio in-band aliasing noise, upscales, and noise shapes the digital audio stream signal using a high-precision floating-point 64-bit operation.
- FPGA Programmable Logic Chip: Features exclusive technologies including self-constructed logic functions, clock management, 2nd PLL digital shaping, DOP demodulation, and PCM/DSD depop switch, contributing to superior sound quality.
- GCLK-02 Clock Module: A high-performance clock frequency synthesizer employing advanced PLL (Phase Locked Loop) technology for stable and accurate clock signals. Supports both local and external 10MHz clock sources, reducing dependence on front-end audio equipment clock performance.
- Hybrid IV Conversion Circuit: Independent parallel circuit design fully meets the high current requirements of the ES9039SPRO chips.
- Network Bridge and Streaming: Supports Roon, Airplay, UPnP, NAA, and Spotify protocols with 100/1000Mbps LAN speed.
- Fully Balanced Design: Features a fully balanced design with complete four outputs.
- Dual High-Capacity Toroidal-Core Power Transformers: Isolated power supplies for digital and analog sections.

Сүрөт 2.1: An overview of the Gustard X26III's key features, including its dual ES9039SPRO DACs, GCLK-02 clock, and network streaming support.

Сүрөт 2.2: Детальдуу view of the internal components, specifically highlighting the dual ES9039SPRO DAC chips and the DSP digital filter implementation.

Image 2.3: A closer look at the GCLK-02 clock module and the hybrid IV conversion circuit, demonstrating the precision engineering.

Сүрөт 2.4: Ички view illustrating the USB interface, dual toroidal transformers for isolated power, and multiple power supply groups.
3. Пакеттин мазмуну
Таңгактан чыгаргандан кийин, бардык буюмдар бар экенин текшериңиз:
- Gustard X26III DAC Network Bridge and Streaming Unit
- Remote Controller
- Электр кабели
- USB кабели
- Колдонуучунун Колдонмосу (бул документ)
4. Орнотуу колдонмосу
Follow these steps to set up your Gustard X26III device:
4.1 Кубат туташтыруу
- Voltagарткы панелдеги e которгуч туура томго коюлганtagсиздин аймагыңыз үчүн (115V же 230V).
- Connect the provided power cable to the AC power input on the rear panel of the X26III and then to a suitable wall outlet.
4.2 Аудио байланыштар
The X26III offers both RCA and XLR analog outputs.
- RCA чыгаруу: Connect RCA cables from the 'Line out RCA' ports on the X26III to the analog input of your ampкөтөргүч же алдын алаampөмүрлүү.
- XLR чыгаруу: Connect XLR cables from the 'Line out XLR' ports on the X26III to the balanced analog input of your ampкөтөргүч же алдын алаamplifier. Ensure correct pin configuration (American Standard: 1 ground, 2 hot, 3 cold).
4.3 Digital Input Connections
Connect your digital audio sources to the appropriate input ports:
- USB киргизүү: Connect a USB cable from your computer or digital audio player to the 'USB input' port.
- AES киргизүү: Connect an AES/EBU cable to the 'AES input' port.
- Коаксиалдуу киргизүү: Connect a coaxial S/PDIF cable to the 'Coaxial input' port.
- Оптикалык киргизүү: Connect an optical TOSLINK cable to the 'Optical input' port.
- I²S Input: Connect an I²S cable to the 'I²S input' port. Refer to section 5.4 for I²S line sequence adjustment.
4.4 Тармактык туташуу
For streaming functionalities, connect an Ethernet cable to the 'LAN' port on the rear panel.
4.5 External Clock Connection
If using an external 10MHz clock, connect it to the '10M clock (BNC)' input on the rear panel.
4.6 Баштапкы күйгүзүү
After all connections are made, press the power switch on the rear panel to turn on the device. The front display will illuminate.

Сүрөт 4.1: Детальдуу view of the front control panel and the rear panel connections, including power, audio outputs, and digital inputs.

Image 4.2: Diagram illustrating the I²S-H High-Specification Signal Input and its various connection modes for compatibility.
5. Иштөө нускамалары
5.1 Башкаруу панелинин үстүнөview
The front panel features a display screen, standby switch, remote control receiver, and touch panel controls for navigation.
- Күтүү режиминдеги которуу: Toggles the device between active and standby modes.
- Дисплей экраны: Учурдагы киргизүүнү көрсөтөт, сample rate, volume, and filter settings.
- Алыстан башкаруу алуучу: Receives signals from the included remote control.
- Сенсордук панель: Allows direct control of settings and input selection.
5.2 Негизги операция
- Күйгүзүү/өчүрүү: Use the standby switch on the front panel or the remote control to turn the unit on or off.
- Киргизүүнү тандоо: Use the input selection buttons on the front panel or remote to cycle through available digital inputs (USB, AES, Coaxial, Optical, I²S, LAN).
- Үндү көзөмөлдөө: The analog outputs (RCA and XLR) have a fixed output level (2.5Vrms for RCA, 5.1Vrms for XLR). Volume control should be managed by your connected ampкөтөргүч же алдын алаampөмүрлүү.
5.3 Network Streaming
The X26III supports various network protocols for streaming audio:
- Колдоого алынган протоколдор: Roon, Airplay, UPnP, NAA, Spotify.
- Конфигурация: Network protocols can be configured via a web interface. Access the configuration web page by entering the device's IP address or "//x26.local" in a web browser on a PC connected to the same network. This interface allows you to enable or disable specific protocols and perform online firmware upgrades.

Image 5.1: Illustration of supported network streaming protocols (Roon, Airplay, UPnP, NAA, Spotify) and a screenshot of the web- негизделген башкаруу интерфейси.
5.4 Digital Filter Settings
The X26III offers various digital filter options for PCM and DSD playback, as well as a NOS (Non-Oversampling) mode.
- PCM Чыпкалары: VIVID, GENTLE, COMPOSITE.
- DSD Filters: 47K, 50K, 60K, 70K.
- NOS Mode: ENABLE/DISABLE.
These settings can typically be adjusted via the front panel controls or the remote control. Refer to the on-screen menu for specific navigation.
5.5 I²S Line Sequence Adjustment
The I²S input supports different line sequence modes to ensure compatibility with various devices. Refer to the diagrams in Image 4.2 and the device's menu to select the correct mode (Mode 1, Mode 2, Mode 3, or Mode 4) for your source device.
6. Техникалык тейлөө
To ensure the longevity and optimal performance of your Gustard X26III, follow these maintenance guidelines:
- Тазалоо: Use a soft, dry cloth to clean the exterior of the device. Avoid using abrasive cleaners, solvents, or chemical sprays, as these can damage the finish.
- Вентиляция: Ensure the device has adequate ventilation. Do not block the ventilation slots. Avoid placing the unit in enclosed spaces or on soft surfaces that may impede airflow.
- Курчап турган чөйрө: Operate the device in a clean, dry environment, away from direct sunlight, heat sources, and excessive moisture.
- Колдонуу: Аппаратты этияттык менен колдонуңуз. Аны түшүрүүдөн же катуу таасирлерге дуушар кылуудан алыс болуңуз.
7. Кыйынчылыктарды
If you encounter issues with your Gustard X26III, refer to the following common problems and solutions:
- Кубат жок:
- Check if the power cable is securely connected to both the device and the wall outlet.
- Verify that the rear panel voltage switch is set correctly (115V/230V).
- Электр розеткасынын иштешин текшериңиз.
- Check the fuse on the rear panel. If blown, replace with a fuse of the same type and rating.
- Үн чыгышы жок:
- Confirm that the correct input source is selected on the X26III.
- Verify that the audio cables (RCA/XLR) are correctly connected to your ampкөтөргүч/алдын алаampөмүрлүү.
- Сиздин камсыз кылуу ampкөтөргүч/алдын алаampкөтөргүч күйгүзүлгөн жана туура киргизүүгө коюлган.
- Үн деңгээлин текшериңиз ampкөтөргүч/алдын алаampөмүрлүү.
- If using a USB input, ensure the correct drivers are installed on your computer (if required).
- Network Streaming Issues:
- Ethernet кабели LAN портуна ишенимдүү туташтырылганын текшериңиз.
- Verify that your network router is functioning correctly.
- Check the network configuration via the web interface (//x26.local) to ensure protocols like Roon, Airplay, UPnP, NAA, or Spotify are enabled.
- Restart the X26III and your network router.
- Дисплей иштебейт:
- If the unit has power but the display is blank, try cycling the power.
- Эгер көйгөй чечилбесе, кардарларды колдоо кызматына кайрылыңыз.
Эгер бул чечимдерди колдонууга аракет кылгандан кийин көйгөй чечилбесе, кошумча жардам алуу үчүн кардарларды колдоо бөлүмүнө кайрылыңыз.
8. Техникалык шарттар
8.1 Санарип киргизүү
- LAN Support Protocols: Roon, Airplay, UPnP, NAA, Spotify (Configurable via web page, upgradable online)
- LAN ылдамдыгы: 100/1000 Мбит/сек
- 10M Clock (BNC): Input impedance 50 Ohm, 0dBm-20dBm, CMOS square wave 0.2V-3.3V, Sine wave 0.5V-3.3V
- USB интерфейси: Supports PCM768K, DSD512, MQA full decoding (via XMOS XU216 USB AUDIO chip)
8.2 Аналогдук чыгаруу
- Жыштык жообу: 20-20kHz / +-0.3dB
- Динамикалык диапазон: 128дБ
- Сигнал ызы-чуу катышы: >127дБ
- Channel Crossstalk: 132 дБ @ 10 кГц
- THD+N: <=0.0001% @ 1kHz
- IMD: ≈0.001% @ -1dbfs
- RCA чыгаруу деңгээли: 2.5Vrms (Көлөмү ТҮЗӨТУЛГӨН)
- RCA Output Impedance: 100Ω
- XLR Output Level: 5.1Vrms (Көлөмү ТҮЗӨТУЛГӨН)
- XLR чыгаруу импедансы: 100Ω
- XLR Interface Definition: American Standard (1 ground, 2 hot, 3 cold)
8.3 Other Parameters
- AC электр менен камсыздоо: AC115V/230V 50/60Hz (Manual Switch)
- Энергияны керектөө: <25 Вт
- Dimensions (excluding protrusions): W330mm * D260mm * H65mm
- Пакеттин өлчөмдөрү: L420 * W360 * H175мм
- Weight with Package: 10 кг (болжол менен 22.05 фунт)
- Модель номери: GUSTARD X26III
- Өндүрүүчү: ГУСТАРД
- Байланыш технологиясы: Ethernet, XLR, RCA, BNC
- Шайкеш түзмөктөр: Smartphone, Tablet, Personal Computer, Ampкөтөрүүчү, баяндамачы
- Аудио чыгаруу режими: Стерео
- Каналдардын саны: 2

Image 8.1: A summary of the technical specifications for the Gustard X26III, including digital input capabilities, analog output performance, and general device parameters.
9. Кепилдик жана колдоо
Gustard products are designed for reliability and performance. While specific warranty details may vary by region and retailer, the manufacturer generally provides support for quality restoration for more than one year, covering repair and shipping costs for eligible issues.
For technical assistance, troubleshooting, or warranty inquiries, please contact your authorized dealer or the manufacturer's customer support. Support is typically available 24/7 to answer any questions you may have.
Көбүрөөк маалымат алуу үчүн, сиз иш сапары менен болот KGUSS дүкөнү.

